An anti-seepage method for artificial lake bottom based on composite soil anti-seepage layer

Abstract

The invention relates to an anti-seepage method for an artificial lake bottom based on a novel composite anti-seepage layer, comprising the following steps: (1) The bottom layer is a plain soil compaction layer, and the plain soil is the undisturbed soil; (2) Prepare a new composite soil The anti-seepage layer is paved on the plain soil compaction layer and compacted mechanically. The solid phase components of the new composite soil anti-seepage layer include dry clay, fly ash, river sand, stone powder and a small amount of industrial waste residue. The liquid phase components include water blocking agent (polyacrylamide solution), water glass solution, calcium chloride solution and water; (3) The planting soil covering layer is evenly laid on the new composite soil anti-seepage layer. The present invention is a "sandwich" anti-seepage method using plain soil compaction layer, new composite soil anti-seepage layer and planting soil cover layer. Compared with the traditional method, the construction operation is simpler, the cost is lower, the material is more convenient Ecological, economical and environmentally friendly.

Description

technical field [0001] The invention relates to an anti-seepage method for an artificial lake bottom, in particular to an anti-seepage method for an artificial lake bottom based on a novel composite anti-seepage layer. Background technique [0002] When carrying out anti-seepage treatment of artificial lakes, the construction party usually adopts the method of laying geomembrane to completely block the infiltration waterproof layer structure. This method blocks the exchange of lake water and groundwater, destroys the ecological balance of the artificial lake, and causes pollution. Moreover, the service life of the geotextile is limited, and it will age after a few years, and its impermeability will decrease, so it must be replaced. Although clay has a certain anti-seepage effect, it is far from meeting the anti-seepage requirements of artificial lakes. The Chinese invention patent application "A Method for Ecological Waterproof and Seepage Reduction of Artificial Lakes in Sa...

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Problems solved by technology

[0002] When carrying out the anti-seepage treatment of artificial lakes, the construction party usually adopts the method of laying geomembrane to completely block the infiltration waterproof layer structure. This method blocks the exchange of lake water and groundwater, destroys the ecological balance of the artificial lake, and causes pollution.

Moreover, the service life of the geotextile is limited, and it will age after a few years, and its impermeability will decrease, so it must be replaced

Although clay has a certain anti-seepage effect, it is far from meeting the anti-seepage requirements of artificial lakes. The Chinese invention patent application "A Method for Ecological Waterproof and Seepage Reduction of Artificial Lakes in Saline-alkali Land" (application publication number is CN 108457241 A) uses In addition to the clay layer, the anti-seepage structure of the artificial lake also needs to have plain soil compaction layer, anti-slip soil solidification layer, geotextile layer (soil release is generally used for saline-alkali land) and planting soil cover layer

Although this method has played a very good role in waterproofing and reducing seepage, it has not played a very good role in reducing construction costs.

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